"Old" is relativ. An out-of-date hi-spec management would still be a better choice than a cheap new one. But as mentioned only use one for which you can get support.
I have got probably some of the best engine management systems there was....back in the. Bosch MS2.8.x = as used in the BTCC for the Supertourers, 10's of thousands of pounds to buy. Absolutely useless to anyone who cannot access the software. So old 'hi spec' isn't necessarily better. A few years old as I put is fine, as long as it is supported and another thing, can you access your own tune to map it?
I looked it up, couldn't see a software download anywhere on their website?